AOA

[Danb]

I’m planning on having an AOA instrument installed in my Acclaim had a BK in my Bravo there not available. What unit provides the best bang for the buck, since I have a G1000 I’m limited on what I can do. I plan on putting it on the top near the compass post. Recommendations are greatly appreciated 

Dan 

[donkaye]

3 minutes ago, Danb said:

I’m planning on having an AOA instrument installed in my Acclaim had a BK in my Bravo there not available. What unit provides the best bang for the buck, since I have a G1000 I’m limited on what I can do. I plan on putting it on the top near the compass post. Recommendations are greatly appreciated 

Dan 

As an independent unit, I've been happy with the Alpha Systems Eagle with HUD Display.  The later units allow for calibration with flaps.  I personally don't find that necessary and have calibrated mine from 1.3 Vso to top of the flap speed.  Garmin also has an AOA, but I don't know of anyone who has it.

[Pinecone]

I went with the Alpha Eagle.  I mounted it to the left side of the glareshield, so it would be in line of sight for patterns.

[kortopates]

I have the same Alpha HUD displays, Don mentions, on both sides since we’re 2 pilots and HUD is intended to be looked through - not from the side.

You’ll have to decide if you want to add the heated probe (i did) and flaps option (i didn’t).
Without the flaps option they recommend setting it up for a clean stall, but that seemed silly to me since i almost always do full flap landings. So after consulting with Don i followed his lead and configured it for full flaps stalls.
The default installation probe angle won’t work on the Mooney wing, i had to adjust the probe angle by one notch.


Sent from my iPhone using Tapatalk

[Danb]

Thanks Don thanks Paul 

[dkkim73]

9 hours ago, donkaye said:

As an independent unit, I've been happy with the Alpha Systems Eagle with HUD Display.  The later units allow for calibration with flaps.  I personally don't find that necessary and have calibrated mine from 1.3 Vso to top of the flap speed.  Garmin also has an AOA, but I don't know of anyone who has it.

Don et al,

Will the Garmin solution allow any display on the G1000? 

I would imagine a separate unit is probably better for

- use flying visually

-serving as a backup/cross check to pitot-derived airspeed

Thanks,

David

[NickG]

I'm having the Garmin AOA installed next month. It is compatible with my G3X. It provides a visual warning on the G3X but also audio cues through the audio panel. I imagine the alpha systems does as well.

[Oscar Avalle]

18 hours ago, kortopates said:

I have the same Alpha HUD displays, Don mentions, on both sides since we’re 2 pilots and HUD is intended to be looked through - not from the side.

You’ll have to decide if you want to add the heated probe (i did) and flaps option (i didn’t).
Without the flaps option they recommend setting it up for a clean stall, but that seemed silly to me since i almost always do full flap landings. So after consulting with Don i followed his lead and configured it for full flaps stalls.
The default installation probe angle won’t work on the Mooney wing, i had to adjust the probe angle by one notch.


Sent from my iPhone using Tapatalk

Same thing with me. I installed the Alpha HUD Display. It works really great. I had the same issue with the probe and had to adjust it too.

[Danb]

Alpha systems with hud display, I have an Acclaim with G1000, I need to order the system, does anyone know if the display with hud fit under the dash with the G1000 or is the above the dash hud display need to be installed. I’d rather have those mentioned above?

D

[M20F-1968]

On 9/20/2024 at 1:54 PM, donkaye said:

As an independent unit, I've been happy with the Alpha Systems Eagle with HUD Display.  The later units allow for calibration with flaps.  I personally don't find that necessary and have calibrated mine from 1.3 Vso to top of the flap speed.  Garmin also has an AOA, but I don't know of anyone who has it.

I am looking for a group response to this one.  I installed the Alpha One with the HUD display just to the left of the steel tube, and slightly to the right of the forward straight-ahead visual path.  It is turned very slightly so that the image (reflection of the unit itself) is centered in the HUD with only a small movement of the eyes needed to view it.

I have a high panel (1 1/2" higher than most Ovations which was also used in the Bravo's for 2-3 years) so my visibility over the panel is less than most Mooneys.  My parts were removed from a 1998 Ovation.  

I did not want to obstruct the straight-ahead view any further. Alpha Systems states that they install these units dead center in the forward view so you are forced to look through the unit. 

In what positions have others installed these units, how did it work out, and what is the consensus of the best installation in a Mooney?

I have posted a picture of my installation below.  I will try to get a couple of pictures from the pilot's seat.

John Breda

 

[Pinecone]

Mine is installed to the left of straight ahead, so does not block straight ahead, but is clearly in view when turning left and flying straight.

[M20F-1968]

 

This is how my AOA is positioned.  The post is just to the right, and the G600 is in the center of my vision straight out.  Still need to shift my eyes to see the AOA.  

Alpha Systems wants it right in the straight-ahead visual field.  How many of you have it straighht-ahead, and how many have it similarly placed to mine.  What seems to be preferable?

John Breda

 

[kortopates]

Mine is installed directly straight in front. As a HUD its not blocking anything and allows me to focus on the runway during the final approach. I too was concerned about it being an impediment and considered installing it off to one side but listened to the vendor and glad I did. After takeoff and in cruise I have it pulled down out of view.

[Max Clark]

On 9/20/2024 at 10:23 PM, NickG said:

I'm having the Garmin AOA installed next month. It is compatible with my G3X. It provides a visual warning on the G3X but also audio cues through the audio panel. I imagine the alpha systems does as well.

What does the installation require?

[NickG]

16 minutes ago, Max Clark said:

What does the installation require?

The installation of a GAP 26 heated pitot tube and a GSU 25, if you don’t have one installed already.

[dkkim73]

18 hours ago, kortopates said:

Mine is installed directly straight in front. As a HUD its not blocking anything and allows me to focus on the runway during the final approach. I too was concerned about it being an impediment and considered installing it off to one side but listened to the vendor and glad I did. After takeoff and in cruise I have it pulled down out of view.

I had been wondering about this. One could imagine using it in several situations (maneuvering to the right or left in pattern, circling approach, turn in a canyon, etc)... center would be more common though for landing and would split the difference between R and L. Your experience that it doesn't impede vision is helpful, as that is what one would want in a HUD. I also didn't realize you could just flip it down, makes perfect sense. 

Paul, do you know if the data can be "understood" and displayed by the G1000 also? That's really a secondary consideration but might be good SA if you are staring at path indicators on an ILS. 

D

[Danb]

Dave I don’t think it can, aircraft spruce it’s back ordered, I’m going to contact alpha systems tomorrow to see if they have them in stock. The heating probe is about $650 I assume I should order it as well although I don’t fly in those conditions 

D

[dkkim73]

3 hours ago, Danb said:

Dave I don’t think it can, aircraft spruce it’s back ordered, I’m going to contact alpha systems tomorrow to see if they have them in stock. The heating probe is about $650 I assume I should order it as well although I don’t fly in those conditions 

D

Dan, 

Thanks, that is kind of what I would have guessed re: G1000 but I sometimes learn about capabilities "around the edges". 

Isn't your plane FIKI? Heated would be a nice backup to pitot and stall vane...

David

[Danb]

Yep it’s FIKI I decided to order the heated probe. It quite pricey though, guess it’s an airplane thing..

[Max Clark]

On 10/6/2024 at 11:33 PM, NickG said:

The installation of a GAP 26 heated pitot tube and a GSU 25, if you don’t have one installed already.

Are you replacing your existing pitot or adding another? I'm reading mixed things online about it fitting.

[NickG]

2 hours ago, Max Clark said:

Are you replacing your existing pitot or adding another? I'm reading mixed things online about it fitting.

Adding

[exM20K]

FYI, I have a core that can be rebuilt by Safe Flight, potentially saving the 30+ days of downtime.  PM me for details.

-dan

[Danb]

On 9/20/2024 at 1:54 PM, donkaye said:

As an independent unit, I've been happy with the Alpha Systems Eagle with HUD Display.  The later units allow for calibration with flaps.  I personally don't find that necessary and have calibrated mine from 1.3 Vso to top of the flap speed.  Garmin also has an AOA, but I don't know of anyone who has it.

Hey Don my AOA is installed and I’ll be going up to calibrate it in a couple days, my installer never calibrated one before. Looking at the manual it said to calibrated at Vs, and Vs x1.3. How did you and or Paul set yours up? Which speed did you do.

D

[donkaye]

3 hours ago, Danb said:

Hey Don my AOA is installed and I’ll be going up to calibrate it in a couple days, my installer never calibrated one before. Looking at the manual it said to calibrated at Vs, and Vs x1.3. How did you and or Paul set yours up? Which speed did you do.

D

Per the Rogers Report the least error occurs when the two calibration points are close together.  Phil Verghese and I calibrated ours with the high calibration point at the top of the white arc in the clean configuration, and the low calibration point at 1.3 Vso fully configured for landing.